Head protection system with regulated pressure areas
US5794260A · kind A · utility
Inventor
Key dates
| Filing date | Dec 18, 1996 |
| Grant date | Aug 18, 1998 |
| Priority date | — |
| Expiry date | Dec 18, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B18/04
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A head protection system providing several types of head protection comprised of at least three cavities called C1, C2, C3, defining three volumes V1, V2, V3 wherein: PA1 C1 is a cavity defined by a mask M for including the mouth and the nose of the wearer. PA1 C2 is a cavity defined by the front face of the head component for including at least the eyes of the wearer. PA1 C3 is a cavity defined by the rest of the head protection system and for including a large part of the hair of the wearer. PA1 Three seals J1, J, J3 insulate the three cavities C1, C2 and C3. These three seals are continuous and close up on themselves. The seal J1 insulates the cavity C1 from the cavity C2, the seal J2 insulates the cavity C2 from the cavity C3, the seal J3 insulates the cavity C3 from the ambient atmosphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.